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Finding the Third Proportional to 4,547 and 9,811.25

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Solution

The third proportional to 4,547 and 9,811.25 is: 21,170.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,547 : 9,811.25 = 9,811.25 : x
  2. Step 2: Convert to fraction form
    4,547/9,811.25 = 9,811.25/x
  3. Step 3: Cross multiply
    4,547x = 9,811.25 × 9,811.25
  4. Step 4: Simplify right side
    4,547x = 96,260,626.56
  5. Step 5: Solve for x
    x = 96,260,626.56/4,547
  6. Step 6: Final answer
    x = 21,170.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.